| 摘要 |
PROBLEM TO BE SOLVED: To provide an automotive sound absorption mat placed on a floor in the automobile and used for enhancing sound absorption effect, and its manufacturing method. SOLUTION: In the automotive sound absorption mat and its manufacturing method, a surface base material comprising a carpet or the like, a synthetic resin film positioned at a back surface side of the surface base material and provided with a large number of ventilation holes and a felt-like non-woven fabric are superposed and integrated in the order through an adhesive in the state that air-permeation property is retained respectively. As the adhesive, any one kind of adhesive of a solvent based adhesive, an emulsion based adhesive or a hot melt based adhesive is used. COPYRIGHT: (C)2008,JPO&INPIT
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